As an import model, the software is natively in Japanese. Why You Need the Software Download
The primary "feature" of this software is bringing a dead unit back to life (radio, reverse camera, and audio).
The is a legacy Toyota genuine navigation system (manufactured by Denso) that relies on a physical DVD map disc to function. If you are looking for a review of the software or the process of downloading it, 💿 Overview: NDDN-W58 Software